/* ============================================
   TEPEPA ELECTROMECÁNICO — DESIGN SYSTEM
   Mobile First · Industrial Dark Theme
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Barlow:ital,wght@0,400;0,500;0,600;0,700;0,800;0,900;1,400&family=Barlow+Condensed:wght@600;700;800;900&display=swap');

/* ---- TOKENS ---- */
:root {
  --clr-bg: #0a0c0f;
  --clr-surface: #111418;
  --clr-surface2: #181c22;
  --clr-border: #252b34;
  --clr-accent: #f5a623;       /* naranja seguridad industrial */
  --clr-accent2: #e8c84a;      /* amarillo advertencia */
  --clr-steel: #4a90d9;        /* azul acero */
  --clr-text: #e8eaed;
  --clr-muted: #8a9bb0;
  --clr-hero-overlay: rgba(10, 12, 15, 0.72);

  --ff-body: 'Barlow', sans-serif;
  --ff-display: 'Barlow Condensed', sans-serif;

  --radius: 4px;
  --radius-lg: 8px;
  --transition: 0.3s cubic-bezier(.4,0,.2,1);

  --section-pad: 4rem 1.25rem;
  --container: 1140px;
}

/* ---- RESET ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--ff-body);
  background: var(--clr-bg);
  color: var(--clr-text);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

/* ---- UTILITIES ---- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.25rem;
}
.accent { color: var(--clr-accent); }
.tag {
  display: inline-block;
  font-family: var(--ff-display);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--clr-accent);
  padding: .2rem .65rem;
  border: 1px solid var(--clr-accent);
  border-radius: 2px;
  margin-bottom: 1rem;
}
.section-title {
  font-family: var(--ff-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 900;
  line-height: 1.1;
  text-transform: uppercase;
}
.section-sub {
  color: var(--clr-muted);
  font-size: 1rem;
  max-width: 56ch;
  margin-top: .75rem;
}

/* ---- NOISE TEXTURE OVERLAY ---- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: .5;
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: rgba(10,12,15,.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clr-border);
  transition: var(--transition);
}
.navbar.scrolled { background: rgba(10,12,15,.97); }
.nav-brand {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: .6rem;
  min-width: 0;
}
.nav-logo {
  height: 2.4rem;
  max-height: 2.4rem;
  width: auto;
  max-width: 7rem;
  object-fit: contain;
  background: #fff;
  border-radius: var(--radius);
  padding: .2rem .5rem;
  flex-shrink: 0;
  display: block;
}
.nav-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.nav-brand-name {
  font-family: var(--ff-display);
  font-size: 1.1rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--clr-text);
}
.nav-brand-name span { color: var(--clr-accent); }
.nav-brand-sub {
  font-size: .65rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--clr-muted);
  display: none;
}
.nav-cta {
  background: var(--clr-accent);
  color: #000;
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: .55rem 1rem;
  border-radius: var(--radius);
  transition: var(--transition);
  white-space: nowrap;
  border: none;
  cursor: pointer;
}
.nav-cta:hover { background: var(--clr-accent2); transform: translateY(-1px); }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  padding: 10rem 1.25rem 3rem;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../assets/img/image40.webp');
  background-size: cover;
  background-position: center 30%;
  filter: brightness(.45) saturate(.8);
  transform: scale(1.04);
  transition: transform 8s ease;
}
.hero:hover .hero-bg { transform: scale(1); }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10,12,15,1) 0%,
    rgba(10,12,15,.5) 50%,
    rgba(10,12,15,.15) 100%
  );
}
.hero-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(245,166,35,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245,166,35,.04) 1px, transparent 1px);
  background-size: 48px 48px;
}
.hero-content { position: relative; z-index: 2; width: 100%; }
.hero-eyebrow {
  font-family: var(--ff-display);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: .75rem;
}
.hero-eyebrow::before {
  content: '';
  display: block;
  width: 2rem;
  height: 2px;
  background: var(--clr-accent);
}
.hero-title {
  font-family: var(--ff-display);
  font-size: clamp(2.6rem, 9vw, 5.5rem);
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: -.01em;
}
.hero-title em { font-style: normal; color: var(--clr-accent); }
.hero-desc {
  margin-top: 1.25rem;
  font-size: 1rem;
  color: var(--clr-muted);
  max-width: 48ch;
  line-height: 1.7;
}
.hero-actions {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-items: center;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: var(--clr-accent);
  color: #000;
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: .9rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .85rem 1.75rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.btn-primary:hover { background: var(--clr-accent2); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245,166,35,.3); }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: transparent;
  color: var(--clr-text);
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: .9rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .85rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--clr-border);
  cursor: pointer;
  transition: var(--transition);
}
.btn-ghost:hover { border-color: var(--clr-accent); color: var(--clr-accent); }
.hero-stats {
  margin-top: 3rem;
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--clr-border);
}
.hero-stat-num {
  font-family: var(--ff-display);
  font-size: 2rem;
  font-weight: 900;
  color: var(--clr-accent);
  line-height: 1;
}
.hero-stat-label {
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clr-muted);
  margin-top: .25rem;
}

/* ============================================
   STRIP — CLIENTES LOGO BAR
   ============================================ */
.strip {
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
  padding: 1.25rem 1.25rem;
  overflow: hidden;
}
.strip-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  white-space: nowrap;
}
.strip-label {
  font-family: var(--ff-display);
  font-size: .7rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--clr-muted);
  flex-shrink: 0;
}
.strip-divider {
  width: 1px;
  height: 1.25rem;
  background: var(--clr-border);
  flex-shrink: 0;
}
.strip-clients {
  display: flex;
  gap: 2.5rem;
  align-items: center;
  flex-wrap: wrap;
}
.strip-client {
  font-family: var(--ff-display);
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clr-muted);
  transition: var(--transition);
}
.strip-client:hover { color: var(--clr-accent); }

/* ============================================
   SERVICIOS
   ============================================ */
.section-servicios {
  padding: var(--section-pad);
  position: relative;
}
.services-header { margin-bottom: 2.5rem; }
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--clr-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.service-card {
  background: var(--clr-surface);
  padding: 1.75rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--clr-accent);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: var(--transition);
}
.service-card:hover { background: var(--clr-surface2); }
.service-card:hover::before { transform: scaleY(1); }
.service-icon {
  width: 2.75rem; height: 2.75rem;
  display: flex; align-items: center; justify-content: center;
  background: rgba(245,166,35,.1);
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: 1.4rem;
}
.service-title {
  font-family: var(--ff-display);
  font-size: 1.1rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: .5rem;
}
.service-desc { font-size: .9rem; color: var(--clr-muted); line-height: 1.65; }

/* ============================================
   PERFIL / NOSOTROS
   ============================================ */
.section-perfil {
  padding: var(--section-pad);
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
}
.perfil-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}
.perfil-img-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
}
.perfil-img-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
}
.perfil-img-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid rgba(245,166,35,.3);
  border-radius: var(--radius-lg);
  pointer-events: none;
}
.perfil-badge {
  position: absolute;
  bottom: 1rem; right: 1rem;
  background: var(--clr-accent);
  color: #000;
  font-family: var(--ff-display);
  font-weight: 900;
  font-size: .7rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  padding: .4rem .85rem;
  border-radius: var(--radius);
}
.valores-list {
  list-style: none;
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.valores-list li {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  font-size: .95rem;
  color: var(--clr-muted);
}
.valores-list li::before {
  content: '▸';
  color: var(--clr-accent);
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: .05rem;
}

/* ============================================
   GALERÍA
   ============================================ */
.section-galeria { padding: var(--section-pad); }
.galeria-header { margin-bottom: 2rem; }
.galeria-tabs {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.tab-btn {
  font-family: var(--ff-display);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .4rem .9rem;
  border-radius: var(--radius);
  border: 1px solid var(--clr-border);
  background: transparent;
  color: var(--clr-muted);
  cursor: pointer;
  transition: var(--transition);
}
.tab-btn.active, .tab-btn:hover {
  background: var(--clr-accent);
  color: #000;
  border-color: var(--clr-accent);
}
.galeria-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .5rem;
}
.galeria-item {
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: var(--radius);
  cursor: pointer;
  position: relative;
}
.galeria-item:first-child {
  grid-column: span 2;
  aspect-ratio: 16/9;
}
.galeria-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}
.galeria-item:hover img { transform: scale(1.06); }
.galeria-item-overlay {
  position: absolute;
  inset: 0;
  background: rgba(245,166,35,0);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.galeria-item:hover .galeria-item-overlay { background: rgba(245,166,35,.15); }
.galeria-btn-more {
  margin-top: 1.5rem;
  text-align: center;
}

/* ============================================
   VALORES / POLÍTICAS
   ============================================ */
.section-valores {
  padding: var(--section-pad);
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
  border-bottom: 1px solid var(--clr-border);
  position: relative;
  overflow: hidden;
}
.section-valores::before {
  content: 'CALIDAD';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--ff-display);
  font-size: clamp(6rem, 20vw, 14rem);
  font-weight: 900;
  color: rgba(245,166,35,.03);
  pointer-events: none;
  white-space: nowrap;
  letter-spacing: .1em;
}
.valores-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 2rem;
}
.valor-card {
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: var(--transition);
}
.valor-card:hover { border-color: var(--clr-accent); transform: translateY(-2px); }
.valor-icon { font-size: 1.75rem; margin-bottom: .75rem; }
.valor-title {
  font-family: var(--ff-display);
  font-size: 1rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: .5rem;
  color: var(--clr-text);
}
.valor-text { font-size: .88rem; color: var(--clr-muted); }

/* ============================================
   CAPACITACIÓN
   ============================================ */
.section-capacitacion { padding: var(--section-pad); }
.cap-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}
.cap-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/10;
}
.cap-img img { width: 100%; height: 100%; object-fit: cover; }
.cap-list {
  list-style: none;
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.cap-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  font-size: .9rem;
  color: var(--clr-muted);
  transition: var(--transition);
}
.cap-list li:hover { border-color: var(--clr-accent); color: var(--clr-text); }
.cap-list li strong {
  font-family: var(--ff-display);
  font-size: 1rem;
  color: var(--clr-text);
  display: block;
  margin-bottom: .2rem;
}
.cap-num {
  font-family: var(--ff-display);
  font-weight: 900;
  font-size: 1.5rem;
  color: var(--clr-accent);
  line-height: 1;
  flex-shrink: 0;
}

/* ============================================
   CONTACTO
   ============================================ */
.section-contacto {
  padding: var(--section-pad);
  background: var(--clr-surface);
  border-top: 1px solid var(--clr-border);
}
.contacto-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
.contacto-info { display: flex; flex-direction: column; gap: 1.5rem; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.contact-icon {
  width: 2.5rem; height: 2.5rem;
  background: rgba(245,166,35,.1);
  border: 1px solid rgba(245,166,35,.2);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-label {
  font-family: var(--ff-display);
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: .2rem;
}
.contact-value { font-size: .95rem; color: var(--clr-text); }
.contact-value a:hover { color: var(--clr-accent); }

/* FORM */
.contacto-form {
  background: var(--clr-surface2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}
.form-title {
  font-family: var(--ff-display);
  font-size: 1.3rem;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}
.form-group { margin-bottom: 1rem; }
.form-group label {
  display: block;
  font-size: .78rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clr-muted);
  margin-bottom: .4rem;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: .75rem 1rem;
  color: var(--clr-text);
  font-family: var(--ff-body);
  font-size: .95rem;
  transition: var(--transition);
  appearance: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(245,166,35,.1);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-submit {
  width: 100%;
  background: var(--clr-accent);
  color: #000;
  font-family: var(--ff-display);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .85rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  margin-top: .5rem;
}
.form-submit:hover { background: var(--clr-accent2); transform: translateY(-1px); }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: #07090b;
  border-top: 1px solid var(--clr-border);
  padding: 2rem 1.25rem;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}
.footer-brand {
  font-family: var(--ff-display);
  font-size: 1.1rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.footer-brand span { color: var(--clr-accent); }
.footer-meta { font-size: .8rem; color: var(--clr-muted); }
.footer-copy {
  font-size: .75rem;
  color: var(--clr-border);
  margin-top: .25rem;
}

/* ============================================
   LIGHTBOX
   ============================================ */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,.92);
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.lightbox.open { display: flex; }
.lightbox-img {
  max-width: 100%;
  max-height: 90vh;
  border-radius: var(--radius);
  object-fit: contain;
}
.lightbox-close {
  position: absolute;
  top: 1rem; right: 1rem;
  width: 2.5rem; height: 2.5rem;
  background: var(--clr-accent);
  color: #000;
  border: none;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-weight: 900;
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.stagger-1 { transition-delay: .1s; }
.stagger-2 { transition-delay: .2s; }
.stagger-3 { transition-delay: .3s; }
.stagger-4 { transition-delay: .4s; }

/* ============================================
   RESPONSIVE — TABLET+
   ============================================ */
@media (min-width: 640px) {
  :root { --section-pad: 5rem 1.5rem; }

  .hero { padding-top: 9rem; }
  .nav-brand-sub { display: block; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .valores-cards { grid-template-columns: repeat(2, 1fr); }
  .galeria-grid { grid-template-columns: repeat(3, 1fr); }
  .galeria-item:first-child { grid-column: span 2; aspect-ratio: 4/3; }
  .cap-list { display: grid; grid-template-columns: 1fr 1fr; }
}

@media (min-width: 900px) {
  :root { --section-pad: 6rem 1.5rem; }

  .hero { padding-top: 10rem; }

  .services-grid { grid-template-columns: repeat(3, 1fr); }
  .service-card:last-child { grid-column: 2; }
  .valores-cards { grid-template-columns: repeat(4, 1fr); }
  .perfil-grid { grid-template-columns: 1fr 1fr; }
  .contacto-grid { grid-template-columns: 1fr 1.2fr; }
  .cap-grid { grid-template-columns: 1fr 1fr; }
  .footer-inner { flex-direction: row; justify-content: space-between; align-items: flex-start; }
  .galeria-grid { grid-template-columns: repeat(4, 1fr); }
  .galeria-item:first-child { grid-column: span 2; aspect-ratio: 16/9; }
}

/* ============================================
   WHATSAPP FAB
   ============================================ */
.wa-fab {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 500;
  background: #25d366;
  color: #fff;
  width: 3.25rem; height: 3.25rem;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 4px 20px rgba(37,211,102,.4);
  transition: var(--transition);
  text-decoration: none;
  border: none;
  cursor: pointer;
}
.wa-fab:hover { transform: scale(1.1); box-shadow: 0 6px 28px rgba(37,211,102,.5); }